# Loops
Loop blocks repeatedly execute code, eliminating the need to duplicate instructions. Use loops to process multiple sensor readings, generate patterns, handle collections of data, or create sequences of operations.
## repeat
Executes the enclosed code a fixed number of times. Use this when you know exactly how many iterations you need.
**Parameters:**
* **Count** (Number): Number of times to repeat
**Example:**
Average sensor reading
## repeat while
Repeats code as long as the condition remains true. The condition is checked before each iteration.
**Parameters:**
* **Condition** (Boolean): The condition to evaluate before each iteration
**Example:**
Process values while above threshold
## repeat until
Repeats code until the condition becomes true. The condition is checked after each iteration, so the loop always executes at least once.
**Parameters:**
* **Condition** (Boolean): The condition to evaluate after each iteration
**Example:**
Read until valid value received
## iterator
Returns the current iteration counter for the loop, starting from 0. Use this to create indexed operations or patterns.
**Returns:**
* **Number**: The current loop iteration (0, 1, 2, ...)
**Example:**
Alternate on/off pattern for multiple LEDs
{% hint style="warning" %}
This block only works inside a loop block. Using it elsewhere will cause an error.
{% endhint %}
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